They are two different terms that are present in the nature of Bitcoin, which is censorship resistant means that when you enter the system and make transactions no one can block them, and if a node or pool did the same, the transaction could be accepted in the next block. Being permissive makes bitcoin usable by anyone anywhere and at any time, they can enter and leave on equal terms. Let's say you acquire a miner and start mining, no one would stop you, not even the big mining companies.